Operating System Beta, etc. Wiki

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Operating System Beta, etc. Wiki

Windows 10 User Interface

Windows 10 (codenamed Threshold, also referred to as Windows 9 or Windows TH) is the successor to the Microsoft Windows 8.1 operating system released on 2015-07-29. It was believed to be called Windows 9, but this was revealed to be mistaken eventually, on 2014-09-30. Rumors have spread that 'Windows 9' was skipped because the name triggered code for Windows 9x in some applications, most of the time leading to an error message on the application not supporting Windows 9x. Windows 10 intends to address some of the complaints that were made in response to the user interface in Windows 8. Screenshots of Windows 10 build 9834 were released on 2014-09-11 which show a revised Start menu interface and additional improvements to the Windows operating system. Windows 10 is an revolutionary release, being the first to fully utilize the potential of Windows Update in order to provide features and fixes to the masses much faster, while also using foolhardy geeks as guinea pigs to provide rigorous testing (referred to as the 'Windows Insider Program'). Windows 10 garnered largely positive reviews, and has easily exceeded the market share that Windows 8 gained in the same period.

Due to the switch to a periodical release system, many builds after the RTM are still labeled 'Windows 10' but are listed on Separate Pages.

The Support Windows 10 TH1 has ended on 2017-03-17, you have Upgrade to Threshold 2 first after upgrading Redstone.


This list only those builds with more information available (i.e. screenshots, photos, etc.) or ones released outside Microsoft (Partners, WIP). The rest can be found on BuildFeed, our sister website.

Windows Update ESD Listing

See here for a list of Windows 10 ESD files that have been gathered from the Windows Update infrastructure.

Pre-Technical Preview (Early Development)

A small number of builds from the pre-Technical Preview page are known. However, all but one of these supposed builds have been proven fake. The only legit pre-TP build was compiled just before the first Technical Preview, albeit in a different branch.

Buildlist-BlueDoubtful.png 9786.0.winmain_prs.140629-1340
Buildlist-Red.png 9795.0.fbl_uip_dev.140713-1834
Buildlist-BlueDoubtful.png 9821.0.fbl_partner_eeap.140820-0938
Buildlist-Green.png 9833.0.fbl_release_clientpro_140903-1451

Technical Preview (6.4.9841-10.0.10061)

The Technical Preview was the first phase of the Windows Insider program. The first build released was 9841, and the last build released during the TP phase was build 10061.

NT 6.4

NT 10.0

Buildlist-Green.png 9907.0.fbl_awesome1501.141210-1857
Buildlist-BlueDoubtful.png 9924.0.fbl_cortana.150116-2027
Buildlist-Green.png 9925.0.fbl_awesome1501.150116-2110
Buildlist-Green.png 9926.0.fbl_awesome1501.150119-1648
Buildlist-Green.png 9942.0.fbl_awesome1501.150306-2358
Buildlist-BlueDoubtful.png 10004.0.fbl_compat_dev01.150126-0128
Buildlist-Green.png 10022.0.winmain_prs.150216-2206
Buildlist-Green.png 10041.0.winmain_prs.150313-1737
Buildlist-Green.png 10061.0.fbl_impressive.150410-2039
Buildlist-Green.png 10102.0.winmain_prs.150417-2325

Threshold Wave 1-class Insider Preview (10.0.10074-10.0.10166)

This phase of development began with build 10074, which was a quality build, at least going by the standards set by 10041/10049. The final phase of TH1 Insider Preview development ended with build 10166, which was extremely close to the RTM build, build 10240.

Buildlist-Green.png 10114.0.fbl_impressive.150503-1700
Buildlist-Green.png 10120.0.fbl_impressive.150510-1700
Buildlist-Green.png 10122.0.fbl_impressive.150513-1845
Buildlist-Green.png 10125.0.fbl_impressive.150516-2126
Buildlist-Green.png 10134.0.winmain_prs.150530-1700
Buildlist-Red.png 10160.0.WINX_RTM.150620-1225
Buildlist-BlueDoubtful.png 10163.0.winmain.150630-1700
Buildlist-Green.png 10166.0.fbl_impressive.150703-1818

RTM Escrow

Buildlist-Green.png 10176.16384.th1.150705-1526


Buildlist-BlueDoubtful.png 10240.0.winmain_prs.150709-1700
Buildlist-Green.png 10240.16487.th1.150901-1500